121705721076722 has 32 divisors (see below), whose sum is σ = 185885391456000. Its totient is φ = 59753531806848.

The previous prime is 121705721076713. The next prime is 121705721076757. The reversal of 121705721076722 is 227670127507121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134998583 + ... + 135897125.

It is an arithmetic number, because the mean of its divisors is an integer number (5808918483000).

Almost surely, 2^{121705721076722} is an apocalyptic number.

121705721076722 is a deficient number, since it is larger than the sum of its proper divisors (64179670379278).

121705721076722 is a wasteful number, since it uses less digits than its factorization.

121705721076722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903890.

The product of its (nonzero) digits is 1152480, while the sum is 50.

The spelling of 121705721076722 in words is "one hundred twenty-one trillion, seven hundred five billion, seven hundred twenty-one million, seventy-six thousand, seven hundred twenty-two".